'seam' where garden window meets the opening ledge

rebawOctober 17, 2009

My DH is relunctant to bring the backsplash up into the garden window, (it's slate tile), but what other choices are there? THere is a "gap" (1/8") where the window buts up against the window ledge. We can't put just sheet rock or sheet rock mud all the way out on the garden window's ledge. A bead of white caluking? yikes! I'm stumped.